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From: briand@tekig4.UUCP (Brian Diehm)
Newsgroups: net.rec.photo
Subject: Re: Orphaned Response (Slide Lifetime)
Message-ID: <453@tekig4.UUCP>
Date: Thu, 9-Jan-86 13:07:30 EST
Article-I.D.: tekig4.453
Posted: Thu Jan  9 13:07:30 1986
Date-Received: Sat, 11-Jan-86 07:39:14 EST
References: <565@ittvax.ATC.ITT.UUCP> <-121429373@sysvis> <675@bonnie.UUCP>
Reply-To: briand@tekig4Diehm.UUCP (Brian Diehm)
Organization: Tektronix, Beaverton OR
Lines: 17
Summary: 

> More important than color balance, in some cases, is image life of the
> film.  I seem to remember that Fuji/Ekta process chromes are mostly 10 yr
> films (before SEVERE image fading occurs), Agfachrome ~= 4 years, and
> Kodachrome ~= 100 years (all archived properly).  Comments anyone?

This was true way back in the dark ages.  Kodak now claims that the life of
Ektachrome equals the life of Kodachrome back in the '50s, i.e., 40 years or
so, again with careful storage.  As for the current life of Kodachrome, I
disremember the source I saw, but it was on the order of 100 years or so.

Remember, almost NONE of us have archival storage!  They specify not only temp
and humidity ranges that are acceptable, but also require cycling between these
extremes at regular intervals, as well as specifying standards of air purity
and maximum amounts of exposure to light.

-Brian Diehm
Tektronix, Inc.